WHO PQS Prequalification System for Immunization Equipment Requirements for E003 solar powered equipment Denis MAIRE WHO Scientist HIS/EMP/QSS/PQS UNICEF SD Manufacturer's meeting 1-2 October 2013
Test Scope of PQS 3 functions = three step cycle Ensure fit for pupose 1. Identify requirements & develop and maintain performance specs and verification protocols. PERFORMANCE SAFETY 2. Pre-qualify products and accredit test laboratories improve product 3. Monitor products postmarket & Prospect innovations
PQS organizational structure Approved documents WHO Geneva UNICEF Copenhagen External consultees performance specs IVB/QSS EHT QAC TSC Technical specialists verification protocols PQS Secretariat PQS Steering Group Testing labs Industry reps PQS database Specification Working Groups Standards bodies PQS.pdf Field Monitoring Working Group SIGN e-forum feedback reports TechNet21 e-forum Key institutional link dialogue output MoHs & end users
PQS Functionality PQS Secretariat Laboratory register Functions: - Maintain registers - Manage correspondence - Generate catalogue updates - Manage user feedback - Traceability - Institutional memory Company register Product register PQS database Document management User feedback Private realm Public realm Functions: - Browse current catalogue - Download PDF catalogue - Print PDF catalogue - Do criteria searches - Browse on-line guides - Submit product feedback PQS website End users
PQS Application process Guidelines for manufacturers WHO/PQS/E003/GUIDE2.3 Published SOPs for PQ process Preliminary Dossier Step one Contact person and contact details Information about the manufacture Characteristics of the product(s) Step two Samples Product Summary sheet Licenses and certificates Full dossier Countersigned letter of invitation to submission Laboratory tests report (in details) Proof of payment of examination fee Product Information Sheet for publication + photos
PQS Application Terms & Conditions 1. Examination of dossier - completeness 2. Dossier examination fee non-refundable 3. Evaluation independent against specs and VPs 4. Laboratory testing 5. Meaning of prequalification / purchaser 6. Publication 7. Re-evaluation (1) Annual; (2) Omissions; (3) complaints 8. Monitoring of complaints - investigation 9. Confidentiality 10.Disclaimer
PQS Performance Specifications & Verification Protocols Verification in 2 ways for E003 prequalification 1. Independent type-testing: Sample inspection and testing is carried out in a PQS accredited test laboratory. 2. Full Quality Assurance: Site inspection by an independent inspector is carried out against a pre-defined checklist. Used for complex programme-critical products involving site-specific design and on-site installation work.
PQS publications
PQS publications
PQS publications Guidance notes
Decision tree by source of energy Is grid or generator electricity available more than 20 hrs/day Is grid or generator electricity available more than 8hrs/day Is grid or generator electricity available more than 4 hrs/day Conditions Is electricity reliable with rare cuts of 4h or less? Appliance type Electric compressore appliance + Voltage regulators ILR standard appliance + voltage regulator ILR on 4h electricity a day + voltage regulator Is a solar service network available? Conduct solar site evaluation Solar direct drive suitable? SDD Is solar battery powered suitable? Solar battery powered appliance Is bottel LP gas readily available? LP gas absorption appliance Is kerosene readily available? Kerosene quality? Kerosene absorption appliance Can the location be supplied with frozen packs every week or month? Long term passive device Develop an outreach strategy to reach the location
PQS Performance Specifications & Verification Protocols 3 sets of specifications 1.Refrigerator or combined refrigerator-icepack freezer (compression cycle, solar powered rechargeable battery storage): WHO/PQS/E003/RF04.2 RF04-VP.2 2.Refrigerator or combined refrigeratorwaterpacks freezer (compression-cycle, solar direct drive without battery storage): WHO/PQS/E003/RF05.3 RF05-VP.3 3.Refrigerator or combined refrigerator and waterpacks freezer (compression cycle, solar direct drive with ancillary rechargeable battery): WHO/PQS/E003/RF06.2 RF06-VP.2
PQS Performance Specifications & Verification Protocols Requirements 1.Type examination & normative references 2.Independent type testing 1. Cool down 2. Stable running & power consumption 3. Waterpacks freezing capacity 4. Waterpacks' storage performance 5. Holdover 6. Autonomy 7. Day/night 8. Minimum rated ambient temperature
PQS Performance Specifications & Verification Protocols Tests Solar battery Ancillary battery SDD 1. Cool down Stabilization +2 C - +8 C & below 0 C Stabilization +2 C - +8 C & below 0 C (OK at night) Stabilization +2 C - +8 C & below 0 C (OK at night) 2. S. running & power Temp stabilization 0.7 kwh/24 hours & less than 0.1 kwh for each additional 10 litres Stabilization +2 C - +8 C & below 0 C (OK at night) Stabilization +2 C - +8 C & below 0 C (OK at night) 3. Freezing capacity 1.6 kg per 24 hours or 2.4 kg per 24h if 50L 1.6 kg per 24 hours or 2.4 kg per 24h if 50L 1.6 kg per 24 hours or 2.4 kg per 24h if 50L 4. Storage of waterpacks at least 8 kg of frozen water-packs (recom) at least 8 kg of frozen water-packs (recom) at least 8 kg of frozen water-packs (recom) 5. Holdover Minimum 3 hours Minimum 20 hours Minimum 20 hours 6. Autonomy N/A Minimum 72 hours at 3.5 KWh/m2/24h Short excursions accepted Minimum 72 hours at 3.5 KWh/m2/24h Short excursions accepted 7. Day/night The MKT worst case +2 C to +8 C. Freezer below 0ºC The MKT worst case +2 C to +8 C. Freezer below 0ºC The MKT worst case +2 C to +8 C. Freezer below 0ºC 8. MRAT Lowest temp. 2 C - 8 C waterpacks frozen Lowest temp. 2 C - 8 C waterpacks frozen Lowest temp. 2 C - 8 C waterpacks frozen
PQS Prequalified solar powered devices 13 solar powered appliances 6 rechargeable battery 2 ancillary battery 5 SDD (1 SDD combined) PQS code Type Manufacturer Solar with rechargeable battery Manufacturer's reference E003/001 Combined refrigerator/freezer Dometic TCW2000DC E003/008 2 mode refrigerator - freezer Dometic TCW3000DC E003/016 Combined refrigerator/freezer Sure Chill PS65i E003/026 Combined refrigerator/freezer Dulas VC65.2 E003/027 Combined refrigerator/freezer Dulas VC150.2 E003/028 Refrigerator Dulas VC200.1 SDD with ancillary battery E003/009 Refrigerator Vestfrost MKS044 E003/029 Refrigerator Haier HTC60 SDD appliances E003/019 Refrigerator Sure Chill BLF100DC E003/020 Refrigerator Sundanzer BFRV55 E003/035 Combined refrigerator/freezer Dometic TCW2000SDD E003/030 Refrigerator Dometic TCW3000SDD E003/037 Refrigerator Zero appliances ZLF100DC
PQS Prequalified solar powered devices Net capacity Type Manufacturer Manufacturer's reference Capacity refrigerator Liter Capacity freezer Liter Solar with rechargeable battery Combined refrigerator/freezer Dometic TCW2000DC 76 30 2 mode refrigerator - freezer Dometic TCW3000DC 109.5 109.5 Combined refrigerator/freezer Sure Chill PS65i 61 24 Combined refrigerator/freezer Dulas VC65.2 37.5 24.3 Combined refrigerator/freezer Dulas VC150.2 86 33.1 Refrigerator Dulas VC200.1 126.5 SDD with ancillary battery Refrigerator Vestfrost MKS044 19.5 Refrigerator Haier HTC60 21 SDD appliances Refrigerator Sure Chill BLF100DC 93 Refrigerator Sundanzer BFRV55 54.5 Combined refrigerator/freezer Dometic TCW2000SDD 99 10 Refrigerator Dometic TCW3000SDD 156 Refrigerator Zero appliances ZLF100DC 93 4 70 to 126 L 2 30 to 60 L 2 ± 20 L 3 ± 100L 1 55L 1 156L
PQS Prequalified solar powered devices Performance Manufacturer's reference Temp. zone Freezing capacity kg/24h Energy cons. Stable running kwh/24h Energy cons. Freezing kwh/24h Holdover hour, min Autonomy hours min SRRP kwh/m2 /day Solar with rechargeable battery TCW2000DC 43 C 3.4 0.58 0.99 13h 35min TCW3000DC 43 C 17 1 2.35 23h 15min PS65i 43 C 2.4 0.63 0.9 4h 24min VC65.2 43 C 2.4 0.55 0.9 3h 8min VC150.2 43 C 2.4 0.68 1.06 3h 22min VC200.1 43 C 0.63 3h 3min SDD with ancillary battery MKS044 32 C 0.51 113h 57min 147h 6 HTC60 32 C 0.484 119h 25min 135h 30min 3.5 SDD appliances BLF100DC 43 C 0.84 170h 170h 3.5 BFRV55 43 C 0.49 65h 10min 83h 29min 3.5 TCW2000SDD 32 C 2.4 0.78 0.91 99h 51min 85h 24min 3.5 TCW3000SDD 32 C 0.25 94h 5min 86h 56min 3.5 ZLF100DC 43 C 1.28 125h 112h* 3.5
Points to consider. 1. The more accessories, the more chance to fail (ex: fans, digital thermometer, batteries, ) 2. Removable waterpacks above ice-bank not permitted if not tested as WP freezer 3. Walls bulging due to waterpacks or ice-bank freezing 4. PV with no QA 5. Unclear or incomplete installation guidelines 6. Incomplete kit for installation 1. Adequate cabling, connections and protective sleeves 2. Lightning protection 3. Theft protection 7. Material: corrosion, hinges solidity
PQS Secretariat
Process for successful solar tenders 1. Identify appropriate sites * (country desk study) No prolonged cloud (> 2 week continuous) No shading between 9AM and 3PM Electricity less than 4-8 hours / day Solar technical service is, or can be, available 2. System design (solar technician site visit) Review climate data for temperature, solar radiation and to determine autonomy needed Site visit to determine panel support structure, fridge location, cable routing, etc. 3. Plan sent to Copenhagen (country) System design docs from technician Installation and maintenance plan * Note: sites identified by GPS coordinates
Process for successful solar tenders 4. Bidding and selection (UNICEF) Review information from countries. Send out request for bids to Qualified Suppliers. Technical review of bids to ensure appropriate specifications proposed.